nix: Update kernel image hashes (#68)

This is incredibly odd but CI started failing for new PRs even though locally it works fine. Updating this as the kernel images actually changed but seems like nix didn't catch that somehow

vm.nix

@@ -5,7 +5,7 @@ let
     name = "download-kernel-5.15";
     src = pkgs.fetchurl {
       url = "https://github.com/javierhonduco/lightswitch-kernels/raw/cfb94e9/bzImage-v5.15-fedora38";
-      hash = "sha256-nq8W72vuNKCgO1OS6aJtAfg7AjHavRZ7WAkP7X6V610=";
+      hash = "sha256-pfQUxfBbDcLwpYFwwMubA4tMw5I60WYb7pKCvkPbgXY";
     };
     dontUnpack = true;
     installPhase = ''
@@ -18,7 +18,7 @@ let
     name = "download-kernel-6.0";
     src = pkgs.fetchurl {
       url = "https://github.com/javierhonduco/lightswitch-kernels/raw/cfb94e9/bzImage-v6.0-fedora38";
-      hash = "sha256-ZBBQ0yVUn+Isd2b+a32oMEbNo8T1v46P3rEtZ+1j9Ic=";
+      hash = "sha256-EgUIm9QUuTFZZp6qYX6YW2PWW63x/whRXajArHqpqfo=";
     };
     dontUnpack = true;
     installPhase = ''
@@ -31,7 +31,7 @@ let
     name = "download-kernel-6.2";
     src = pkgs.fetchurl {
       url = "https://github.com/javierhonduco/lightswitch-kernels/raw/cfb94e9/bzImage-v6.2-fedora38";
-      hash = "sha256-YO2HEIWTuEEJts9JrW3V7UVR7t4J3+8On+tjdELa2m8=";
+      hash = "sha256-FDIkraUFzgJf5rJYQliqS8F7jeO4KWc5OeZDXqu/0uA=";
     };
     dontUnpack = true;
     installPhase = ''
@@ -44,7 +44,7 @@ let
     name = "download-kernel-6.6";
     src = pkgs.fetchurl {
       url = "https://github.com/javierhonduco/lightswitch-kernels/raw/cfb94e9/bzImage-v6.6-fedora38";
-      hash = "sha256-6Fu16SPBITP0sI3lapkckZna6GKBn2hID038itt82jA=";
+      hash = "sha256-9SNl69kpyyPzfxGk8jdPBAXT929a4Ep7vwkerP7SVl8=";
     };
     dontUnpack = true;
     installPhase = ''